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Mashcka [7]
2 years ago
13

Can someone please help me solve this? I will give brainist for the person who does it correctly.

Mathematics
1 answer:
Rufina [12.5K]2 years ago
5 0

Answer:

Yes the car was speeding

Step-by-step explanation:

               s = √(30fd) where

  •    s is the speed of the car in mph
  •    f is the coefficient of friction for the road
  •    d is the length in feet of the skid marks

Substitute d = 41.5 and f = 0.8 into the equation:

    s = √(30 x 0.8 x 41.5)

⇒  s = √(996)

⇒  s = 31.55946768...

Therefore, for these data, the speed of the car was 31.56 mph (to the nearest hundredth)

The speed limit was 30 mph, therefore the car was speeding as 31.56 > 30

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Answer:

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Step-by-step explanation:

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6 0
3 years ago
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Answer:

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3 years ago
A local hamburger shop sold a combined total of 763 hamburgers and cheeseburgers on Saturday. There were 63 more cheeseburgers s
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In order to solve this we'll start by assigning variables to hamburgers and cheeseburgers, since these are what we're trying to find. Lets say x = hamburgers and y = cheeseburgers. So we know two things, we know that x+y= 763 (hamburgers plus cheeseburgers sold equals 763, and we know that y= x+63 (cheeseburgers sold equals 63 more than hamburgers sold). Now we have a system of equations. This can be solved most easily by rearranging each equation to each y, and then set them equal to each other:
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3 years ago
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Answer:

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Step-by-step explanation:

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